Cave Text Adventure - Find the Jewel and return with it. (Ad supported)

Cave Text Adventure - Find the Jewel in my second text adventure which not ad supported and return it to the right place. There is a larger 'world to explore', several items to be used and others to interact with. I hope this will bring back memories of the old text adventures when the only graphics were those in your mind.

Valid single word inputs are:

N NORTH

S SOUTH

E EAST

W WEST

NE NORTHEAST

NW NORTHWEST

SE SOUTHEAST

SW SOUTHWEST

I IN

O OUT

U UP

D DOWN

INV INVENTORY

Commands to be used with items:

GET

PICKUP

DROP

EXAMINE

READ

Other commands:

TALK

YELL

LOOK

USE

What others say and do may contain clues.